• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.291-294
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• 2010

표준 코딩 스타일은 개발 단계에서 오류 가능성이 있는 코드를 사전에 차단하고 코드의 가독성을 높여 소스코드의 품질을 높일 수 있는 대표적인 방법이다. 자동차 분야에서는 MISRA-C 와 같은 표준 코딩 스타일이 있으며 이를 검사하는 다수의 도구가 개발되었다. 본 논문에서는 소프트웨어의 안전성 및 신뢰성을 기반으로 국제 및 산업 표준 권고 사항과 경험적인 사례를 바탕으로 가전 기기 소프트웨어에 적합한 코딩 스타일 43 종을 정의했으며 이를 구현한 자동화 도구를 개발했다. 개발된 C 코딩 스타일 검사기를 이용하여 냉장고와 세탁기에 탑재된 소스코드에 대상으로 실험해 개발자들이 쉽게 위배하는 규칙에 대해서 살펴보았다. 위배한 코딩 스타일 중 주석관련 스타일이 각 소스코드 별로 64%, 24%로 가장 많이 차지하고 있으며, 제어문 관련 규칙이 12%, 17%, 코드 모양(Layout)관련 규칙이 4%, 11% 순으로 나타났다. 본 논문에서 개발한 코딩 스타일 검사 도구는 향후 양산되는 제품에 계속적으로 적용될 것이며 소프트웨어 품질 향상에 실질적인 도움이 될 것으로 기대된다.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.261-264
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• 2002

자동차 전조등에서 나오는 데이터는 다양한 패턴을 가지는 영상자료와 부분적으로 보이는 문자자료이다. 내용기반 영상검색을 통해 자동차 전조등에서 검사자가 판독하는 텍스트와 부분적인 전조등의 영상정보로 차량의 정보를 추출하기 위한 검색 방법을 국립과학수사연구소의 자료를 기반으로 설계하였으며, 영상검색에 사용된 영상특징값의 구성과 영상 검색방법을 연구하였다. 본 논문에서는 영상데이터의 검색을 위해 효과적인 영상특징이 추출 되도록 향상된 방법론을 제시하였다. 특징함수에 대한 유효성 검증을 위해 샘플 영상에서 각 후보 특징함수들에 대한 결과값들을 비교하였으며, 이를 기반으로 유효한 특징함수를 찾아서 검색에 사용되어지도록 구성하였다. 사용되어진 영상의 특징값은 전조등 영상이 가지는 다수의 텍스쳐함수와 가로, 세로 성분값을 사용하였다. 영상 검색을 위해 추출된 영상 특징값을 데이터베이스화하고 용의차량의 전조등 영상을 질의 영상으로 하여 후보 차량에 대한 정보를 검색하도록 하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.10
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• pp.5912-5918
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• 2014

Owing to highly developed industries and the use of fossil fuels, environmental problems becoming becoming pressing issues globally. Therefore, a study of automobile exhaust is urgently needed. Generally, air is sucked into the engine through the intake manifold. The aims of this study were to reduce the exhaust from used cars and increase the output by removing carbon deposits, which are considered a reason for the increasing exhaust and reduction of output, and the reduction of exhaust, variation of output and stability of idle speed were analyzed. The formation of carbon deposits within the suction manifold was investigated through a test device (KD147). In the intake manifold, the exhaust cleaning effect was confirmed.

• Transactions of the Korean Society of Automotive Engineers
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• v.6 no.3
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• pp.161-168
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• 1998

This paper presents the on-vehicle information system that displays the states of the vehicle in brief words instead of symbols. Main functions of this system include a system check function, trip function, warning function, and clock function. With this system, a driver can obtain all sorts of useful information related to various conditions of the vehicle, and if any problem arises in the vehicle, he can recognize it by the displayed words with a warning sound. Also, this system is very helpful for safety driving because it displays whatever a driver wants to have concerning trip information. By experimental test and driving test, the development system shows good results for each function.

• Transactions of the Korean Society of Automotive Engineers
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• v.10 no.1
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• pp.133-142
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• 2002

To improve the hydraulic control performance of ABS, it is necessary to establish an efficient control algorithm. And also it is necessary to ova]Hate a hydraulic modulator with solenoid valve quantitatively. In this paper, FEM and permeance method are used to analyze dynamic characteristics of outlet valve. In return, mathmatical modeling of a hydraulic modulator and operating pressure is presented, and the model parameters of an outlet valve are moving plunger, spring constant and orifice diameter. This study shows the way to improve the dynamic characteristic of an ABS outlet valve heavily depending on operating pressure. It is recommended that operating pressure should be justified at the first step toward the design to get the optimal design of an outlet valve.

• Journal of Korea Society of Industrial Information Systems
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• v.4 no.3
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• pp.8-14
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• 1999

SPC(Statistical Process Control) provides objective means of controlling quality in any transformation processes by analyzing statistically data gathered in the process. Considering the fact that a measure to feedback results of the process investigation in the real time is required, it is very practical to construct the SPC system as a module of the POP(Point of Production) system. Because this approach can make the investment cost reduced and achieve goals of production/process control and SPC simultaneously. This paper designed and developed the SPC system of firm S that manufactures automobile parts

• Transactions of the Korean Society of Automotive Engineers
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• v.8 no.6
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• pp.279-286
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• 2000

The stud bolts tend to degrade faster by high temperature(over 45$0^{\circ}C$). Therefore, replacement cycle inspection of stud bolts were carried out various method such as ultrasonic test(UT), magnetic test(MT), wobble test, visual test and hardness test. Especially, wobble test method has been applied to determine replacement evaluation criteria of stud bolt after long time operation. We applied three different methods on the three site and the obtained data are compared with the results from the evaluation methods. From the results, the replacement criteria for stud bolts under high temperature in power plants are proposed.

• Transactions of the Korean Society of Automotive Engineers
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• v.3 no.6
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• pp.199-211
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• 1995

As international market pressures increase, product life cycles are becoming shorter at same time requirements for productivity and flexibility are becoming higher. Major improvement in robot programming user interface is central to increasing productivity and flexibility for automatic manufacturing environments. New computer technologies have the potential to accomplish this improvement. In this study we have developed a system which proves that interactive computer graphics and geometric modeling have matured to the point where their artful application into an integrated system can rsult in radically new and powerful user interface for robot programming. With the graphic user interface environment the system efficiently utilizes the existing CAD data and gemetric modeling techniques for off-line programming and simulations. Also the system successfully generates robot control programs performing the desired tasks given through off-line programming.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.1067-1068
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• 2015

자동차 부품생산 시 발생할 수 있는 다양한 결함을 생산 공정 중에 결함을 발견하는 것은 사후 비용절감 부분에서 매우 중요하다. 특히 플라스틱과 같은 사출성형(injection molding) 경우 흠집(scratch) 및 미성형이 빈번하게 발생되어 납기지연에 주 원인이 되고 있다. 본 논문에서는 LabView 기반의 비젼시스템(vision system)을 활용하여 플라스틱 제품에 발생할 수 있는 다양한 결함을 검출할 수 있는 검출시스템을 개발하고자 한다. 또한 발생된 결함을 DB 화하여 결함 원인을 분석할 수 있는 데이터를 확보하고, 불량률을 줄여 생산 공정을 개선하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.811-812
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• 2016

Wiring Harness is a medium that transfers the electrical signals necessary to drive a car, and receives a large impact on vehicle performance. Wiring Harness jobs in the workplace material relying on manual worker productivity is low product failure rate is high. Therefore, in this study in order to reduce repetitive humen error, indicated sequentially by the LED lights. We implement a high-performance wireless harness conveyor system.